Carrier frequency
The carrier is the audible tone sent to an ear. A 200 Hz carrier is sound you can hear; the low-frequency “8 Hz” label is the difference between the left and right carriers, not an 8 Hz tone coming from the speaker.
FREQUENCY LAB • LEARN
The signal is simple. The experience can be deep.
Frequency generates two audible carrier tones independently in stereo. When the tones differ slightly, many listeners perceive a rhythmic binaural beat at the difference between them.
LEFT200 Hz+RIGHT208 Hz=
8 Hzperceived beat difference
Stereo separation
Classic binaural playback requires a different signal at each ear, which is why Frequency recommends stereo headphones. If the channels are collapsed to mono, the intended binaural relationship is lost.
Journey stages
Frequency Journeys can move the beat difference gradually over time. The app interpolates between stages instead of abruptly switching frequencies, while ambience and carrier settings remain independently controllable.
COMMON LABELS
Delta, theta, alpha and beta are useful labels—not guarantees.
Brainwave bands are conventional EEG frequency ranges. Audio products often use the same names for beat-frequency targets, but hearing an “alpha” or “theta” binaural beat does not mean a listener’s entire brain has entered a matching EEG state.
Frequency uses those labels as navigational shorthand for the programmed beat range, not as a diagnosis or promise of a neurological state.
DELTA~0.5–4 HzVery low-frequency target range
THETA~4–8 HzLow-frequency target range
ALPHA~8–13 HzMid-low target range
BETA~13–30 HzHigher target range
WHAT THE RESEARCH SAYS
Interesting evidence. Uneven certainty.
Research on binaural and other auditory beat stimulation is active, but results vary by study design, frequency, duration, outcome, and population. Recent reviews report promising findings in some anxiety, pain, sleep, or cognitive contexts while also emphasizing small samples, heterogeneity, contradictory findings, or insufficient evidence for broad conclusions.
That is why Frequency describes sessions by their audio design and intended listening context rather than claiming to treat a disease, force a brain state, or guarantee an outcome.
2026 SYSTEMATIC REVIEWMusic & binaural beat interventionsPromising effects with important limitations in sample size and study heterogeneity.PubMed ↗
2024 SYSTEMATIC REVIEWAuditory stimulation, arousal & cognitionFound mixed or insufficient evidence for several physiological and cognitive relationships.PubMed ↗
BACKGROUND REVIEWAuditory beat stimulationDocuments both positive studies and contradictory findings across cognition and mood research.Frontiers ↗
WHAT FREQUENCY ACTUALLY DOES
Transparent by design.
READY TO LISTEN?
Start with the headphones check.
Use a comfortable low volume and choose a session that fits what you are doing right now.